Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-10-28 15:51:43 +00:00
Code Issues Packages Projects Releases Wiki Activity

media: Clear devnode->media_dev holding media_devnode_lock

Browse Source 
Fix media_devnode_unregister() to clear devnode->media_dev while holding
media_devnode_lock. media_devnode_register()'s cdev_add_error handling
does this correctly.

Signed-off-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Shuah Khan 2019-04-01 20:43:18 -04:00 committed by Mauro Carvalho Chehab
parent 898bc40bfc
commit 10cb050459
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/media/media-devnode.c
View File

@ -291,8 +291,9 @@ void media_devnode_unregister(struct media_devnode *devnode)
mutex_lock(&media_devnode_lock);
/* Delete the cdev on this minor as well */
cdev_device_del(&devnode->cdev, &devnode->dev);
mutex_unlock(&media_devnode_lock);
devnode->media_dev = NULL;
mutex_unlock(&media_devnode_lock);
put_device(&devnode->dev);
}